Possible Clues:

• Naturalist Irwin
• Clark who sang 'Poor, Poor Pitiful Me'
• Schiavo at the center of an end-of-life care controversy
• ''Poor, Poor Pitiful Me'' singer Clark
• Bindi Irwin's mom
• Will's ex-wife on 'Glee'
• Miss, perhaps, land that's lost to railway
• Wife of the late Steve Irwin, a.k.a. 'The Crocodile Hunter'
• Wife of the late Steve Irwin, a.k.a. "The Crocodile Hunter"
• 'Somebody's Knockin'' singer ___ Gibbs